Exact and approximate analytical solutions of Weiss equation of ferromagnetism and their experimental relevance. (2nd September 2017)

• Record Type: Journal Article
• Authors: Barsan, Victor; Kuncser, Victor
• Is Part Of: Philosophical magazine letters. Volume 97:Number 9(2017)
• Page Start: 359
• Page End: 371
• Publication Date: 2017-09-02
• Subjects: Condensed matter -- Periodicals; Physics -- Periodicals; Solid state physics -- Periodicals; Physique -- Périodiques; 530.41
• DOI: 10.1080/09500839.2017.1366081
• Languages: English
• ISSNs: 0950-0839

Abstract

Abstract : The recent progress in the theory of generalised Lambert functions makes possible to solve exactly the Weiss equation of ferromagnetism. However, this solution is quite inconvenient for practical purposes. Precise approximate analytical solutions are obtained, giving the temperature dependence of the spontaneous magnetization, and also the dependence of the magnetization on both temperature and external magnetic field. The experimental relevance of these results, mainly for the determination of the Curie temperature, is discussed.